1185173-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1185173-56-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,5,1,7 and 3 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1185173-56:
(9*1)+(8*1)+(7*8)+(6*5)+(5*1)+(4*7)+(3*3)+(2*5)+(1*6)=161
161 % 10 = 1
So 1185173-56-1 is a valid CAS Registry Number.